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1 files changed, 49 insertions, 0 deletions

diff --git a/node_modules/@webassemblyjs/floating-point-hex-parser/lib/index.js b/node_modules/@webassemblyjs/floating-point-hex-parser/lib/index.js
new file mode 100644
index 00000000..a8676992
--- /dev/null
+++ b/node_modules/@webassemblyjs/floating-point-hex-parser/lib/index.js
@@ -0,0 +1,49 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = parse;
+
+function parse(input) {
+  input = input.toUpperCase();
+  var splitIndex = input.indexOf("P");
+  var mantissa, exponent;
+
+  if (splitIndex !== -1) {
+    mantissa = input.substring(0, splitIndex);
+    exponent = parseInt(input.substring(splitIndex + 1));
+  } else {
+    mantissa = input;
+    exponent = 0;
+  }
+
+  var dotIndex = mantissa.indexOf(".");
+
+  if (dotIndex !== -1) {
+    var integerPart = parseInt(mantissa.substring(0, dotIndex), 16);
+    var sign = Math.sign(integerPart);
+    integerPart = sign * integerPart;
+    var fractionLength = mantissa.length - dotIndex - 1;
+    var fractionalPart = parseInt(mantissa.substring(dotIndex + 1), 16);
+    var fraction = fractionLength > 0 ? fractionalPart / Math.pow(16, fractionLength) : 0;
+
+    if (sign === 0) {
+      if (fraction === 0) {
+        mantissa = sign;
+      } else {
+        if (Object.is(sign, -0)) {
+          mantissa = -fraction;
+        } else {
+          mantissa = fraction;
+        }
+      }
+    } else {
+      mantissa = sign * (integerPart + fraction);
+    }
+  } else {
+    mantissa = parseInt(mantissa, 16);
+  }
+
+  return mantissa * (splitIndex !== -1 ? Math.pow(2, exponent) : 1);
+}
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